Hi Cookie
Have studied this long and hard - looked at the trees too - and think the latter have all got something wrong! Seems to me people have tried to make pieces fit and they just don't!
First of all, neither of the 2 Williams was married to an Elizabeth Ann Ling born Blaxhall as stated on the trees.
William Crick bc.1818 Lidgate was baptised 12/3/1818 Lidgate (son of Jeffery Crick and wife Mary) and died 1883 Cambridge. His wife Elizabeth was according to all the census born Comberton, Cambs. William Crick married Elizabeth Williamson in 1844 at Cambridge (baptised 1816 Comberton as shown on IGI). Elizabeth Crick died in Cambridge the year after her husband.
William Crick bc.1818 Ipswich was baptised 31/8/1817 St. Mary Tower, Ipswich son of John and Sarah Crick. (John Crick married Sarah Davie 22/8/1816 St. Clements, Ipswich). His wife Ann - on all the census - is shown as born Ipswich. He is the one who married an Elizabeth Ann Ling in 1837 Ipswich. However, have found her baptism and she was baptised as Ann Elizabeth Ling (not Elizabeth Ann) in a non-confirmist church in Ipswich on 19/2/1816, dau. of John and Elizabeth Ling. She is shown as Ann on all the census and died - registered as plain Ann - in 1874 Ipswich aged 59. William is a widower in 1881 Census and died Dec.1887 Ipswich.
At least one of the trees states that William and Ann are shown on the 1841 Census at Tuddenham, Ipswich with the name Crask. This is not them. They were in fact in Ipswich transcribed as Cricks with a 2 year old dau. shown as Ann. However, this should actually be their eldest dau. Charlotte so don't know if this was an enumerators error or whether they called her Ann as a youngster. She is definitely Charlotte in 1851 Census and birth registered as such.
William and Ann are a nightmare on the census (all in Ipswich) because of the ages they gave.
1841 - both shown as aged 20 (that's correct as ages rounded down in this census.
1851 - He's 33 and she's 36.
1861 - Both shown as 50
1871 - He 68, she 65
1881 - He's 77.
Luckily whoever informed the registrar of their deaths got their ages right. His Dec.1887 Ipswich aged 71 and Ann's 1874 aged 59.
So, as you can see, neither of the 2 Williams was married to an Elizabeth Ann Ling born at Blaxhall - in fact the Elizabeth they show, dau. of George and Jemima, was just plain Elizabeth not an Elizabeth Ann. William born Lidgate wife was Elizabeth born Comberton and William born Ipswich wife Ann born Ipswich.
Ignore the trees - they are definitely wrong.
If it's Elizabeth Ling born Blaxhall who you are really interested in then she appears to have married William Smith in Blaxhall 19/4/1838 and she died there 1892.
Hope this now clarifies just who was who and who married who.
Annette